Function hts_sys::bcf_get_format_string

pub unsafe extern "C" fn bcf_get_format_string(
    hdr: *const bcf_hdr_t, 
    line: *mut bcf1_t, 
    tag: *const c_char, 
    dst: *mut *mut *mut c_char, 
    ndst: *mut c_int
) -> c_int